Anglian Water is advising people in some areas of Lincolnshire to boil their water before use because it is not fully clean.
People are being told to boil the water and leave it to cool before using it for drinking, cooking, preparing food and brushing teeth in the following areas:
- Areas of Horncastle – click here for more details and to search your postcode
- Claxby with Moorby
- Greetham with Somersby
- High Toynton
- Low Toynton
- Lusby with Winceby
- Mareham on the Hill
- Mavis Enderby
- West Ashby
Water can still be used for washing, bathing and flushing toilets.
The advice also applies to drinking water for pets.
It was issued as a precaution after test results showed the water may not be up to its usual high standards.
Paul Valleley, Director of Water Services for Anglian Water, said over the weekend: “We are working hard to get things back to normal as quickly as possible, but ask people in this area to please boil their tap water and allow it to cool until further notice.
“We are writing directly to all homes affected with advice on what to do and will regularly update customers until things return to normal.
“We are very sorry for the inconvenience caused but customers’ health and wellbeing must come first.